Improvement in devices for transmitting motive power



2 She`et s--Sheet 2.y

`Patented Jan. 28,1873.

R. T. SMITH. Devices for Transmittng Motive-Powers.

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UNrrED STATES PATENT OFFICE. 'l

'ROSWELL T. SMITH, OF NASHUA, NEW HAMPSHIRE, ASSIGNOR T() HIMSELF, J. G.BLUNT, J. K. PRIEST, AND WILLIAM EARL, `OF SAME PLACE.

. IMPROVEMENT IN DEVICES FOR TRANSMITTING MOTIVE POWER.

Specification forming part of Letters Patent N0. 135,293, dated January28, 1873.

To all whom it may concern: g

Beit known that I, RoswELL T. SMITH, of Nashua, in the county ofHillsborough and State of New Hampshire, have invented certain new anduseful Improvements in Transmittin g Motive Power; and I do herebydeclare that the following is a full, clear, and exact descriptionthereof, reference being had'to the accompanying drawing making part ofthis specification, in which-- Figure 1, Plate 1, is a perspective viewof the machine complete, having a shearing device applied to it. Fig. 2,Plate 2, is a vertical section through the standard of the machine, withparts of it broken away, showing also the means for transmitting rotarymotion to a pendent shaft on a vibrating balanced arm. Fig. 3, Plate 2,is a top view of the machine, with parts of its shafts broken away.

Similar letters of reference indicate correspending parts in the severalfigures.

This invention relates to certain novel means for transmitting motionpositively through the medium of jointed or articulating rods to asheep-shearing, horse-clipping device, or other device which i's guidedand controlled by the hand. My object is to carry into practical effect,for the purpose above described, the universal joint for which LettersPatent were granted to me, bearing date June 25,1867,

whereby rotary motion can be transmitted from one shaft to anotherwhenthese shafts areY connected together by a joint; also, to effect thesame ends, as described in the Letters Patent No. 59,089, and reissuedNovember 7, l1871,by means of 'shafting and cogwheels, as will behereinafter'explained. n

The following description of my invention will enable others skilled inthe art to understand it.

In the accompanying drawing, A represents a standard which is mounted ona foot-piece, a, and preferably made hollow throughout. This standard ismade of two pieces connected together by loop-section A', across which ashaft, a', passes, carrying a beveled spur wheel, B, and a cranklwheel,C. The wheel B engages with the teeth of a pinion spurwheel, b,whichiskeyedon a shaft, h, thatpasses up through the upper section ofthe standard, and has keyed on its upper end a beveled pinion, b.Between the pinion b' and the up per end of the upper section of thestandard A a collar is loosely applied on -the shaf't h, on which collartwo bearings, D', are applied, which form a stirrup -bearing for ahorizontal shaft, d, ou which is a double-beveled wheel, c, and avertically-vibrating stirrup, D. The wheel c, which has a long hub c',engages with the wheel b' and also with a pinion, g, on a shaft, G'.This shaft G is incloscd inl a tubular arm, G, one end of' which issecured into a collar, s, on which are constructed two arms,constituting the stirrup-bearin g D, which is connected loosely by itseyes to the shaft d. The outer end of the arm G has secured to it, bymeans of a collar, J1, a stirrup-bearing, J, the arms of which receivethrough them a shaft, n, on which is a double-beveled spurwheel, L,having a long` hub, t. This wheel L engages with a beveled spur-wheel,g', on the outer end of the shaft G', and it also engages with the teethof a pinion spur-wheel, r, which is keyed on the upper end of a pendentswinging rod, K. The upper end of the rod K is received into 'a tubularbearing, j, on which two arms are constructed that constitute a stirrup,J2, the eyes on which receive loosely through them the shaft n, ou whichis the spur-wheel L, as above stated. To the lower end of the pendentrod K a sheep-shearing or horse-clipping device, N, or any otherinstrument or tool, is attached by means of a coupling, p, a swivel, orother suitable device,

,on the driving-rod of which a handle, S, is

applied, which will allow the said rod to rotate freely Without being incontact with the hand. It is obvious that a variety of tools may beattached to the pendent rod K, and therefore, while I have representedin Fig-1, Plate l, a shearing or clipping device, I do not confinemyself thereto. For the purpose of holding upl or balancing the arm G,its rod'G', the pendent rod K, the tool, and the universaljointconnection between the arm g and rod K, I employ a rod, E, which has aweight, E', applied on its outer end, and which is longitudinallyadjustable in eyes e e cast on one of the arms of the stirrup D. Bymeans of a setscrew,v the rod E can be fixed at any desired point. Theobject of adjusting the loaded rod E is to obtain a balance when toolsof different weights are employed on the pendent rod K. It will be seenthat the loaded rod E is arranged on one side of the aXis of thestandard A; but, if desired, this rod may be arranged in the samevertical plane as the standard A, by attaching it to arms which could becast on the stirrup I).

I have described a gravitating weight as a` means for balancing, and Iprefer to use such means, although a spring might be employed in itsstead; but the difficulty attending a spring is that it is not uniformin its action `free vertical motion about the axis of the shaft d. Thependent rod l is allowed to rotate about its own axis, and at the sametime to receive vertical, lateral, circular, and other motions. It willfurther be seen that I dispense with belts and pulleys, and transmitrotation from one rigid shaft to another by means of spur-wheels. I amthus relieved from the difficulties attending belts, and I obtain a moredirect and positive motion than is afforded when belts and pulleys areused.

I have used the term stirrups in reference to the jointed bearings D Dand J J2, but

bearings of any other suitable shape or kind may be adopted.

The hollow7 or tubular standard A and the arm G will protect theirrespective shafts from dust and other matters which, if the shafts wereexposed, would clog their bearings and cause them to work hard.

While I prefer to employ a hollow standard and a hollow arm, I do notconne myself' thereto. Y

Having described my invention, what 1 claim as new, and desire to secureby Letters Patent, is-

1. The shaft h and spur-wheel b', supported by a standard, A, as meansfor transmitting rotary motion to a spurwheel, c, on a shaft, d., whichlatter has its bearings in a horizontally-articulating stirrup D', andhas pivoted to it the stirrup.D of a vertically'-vibrating arm, G,substantially as described.

2. The revolving balanced shaft G', applied to articulate or swing on astandard, A, the shaft K, and their intermediate gear-wheels, combinedsubstantially as and for the purpose described.

3. The combination of the vertical shaft h, the horizontally andvertically movable shaft G', the pendent swinging rod K, and gearwheelsuniversally connecting the same, substantially as described.

tOSVVELL T. SMITH.

Witnesses:

J K. PRIEST, H. E. Pmns'r.

